MCOPS‚ Manipal ANALYTICAL METHODS FOR RESIDUAL SOLVENTS INTRODUCTION: Organic solvents are routinely applied during synthesis of drug substances‚ excipients‚ or during drug product formulation. They are not desirable in the final product‚ mainly because of their toxicity‚ their influence on the quality of crystals of the drug substance and their odor or taste‚ which can be unpleasant for patients. To remove them‚ various manufacturing processes or techniques (usually under
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EXPERIMENT 8 QUANTITATIVE DETERMINATION IODOMETRIC TITRATION OF COPPER CONCENTRATION IN AQUEOUS SOLUTION B Y RESULTS AND DISCUSSION Considered as moderately weak oxidizing agent‚ Iodine was used for the determination of strong reductants. Standard iodine solutions were found to have smaller electrode potentials as compared with the other oxidants‚ gaining them the advantage of imparting a degree of selectivity essential in the determination of strong reducing agents amid the presence
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Charlotte Perkins Gilman was a Women’s rights activist and a fantastic writer. She was a passionate feminist in an era in which women needed a powerful role model such as herself. She toured the United States giving lectures on social reform and sharing her views and opinions on Women’s rights. Unfortunately‚ she suffered from severe depression which was both a gift and a curse. The gift came in form of her writing. It gave her a deep passion which channeled into something spectacular; her most well-know
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the difference between various types of hydrocarbons by performing simple tests and reactions involving hydrocarbons. EQUIPMENT AND CHEMICALS Pentene Toluene Heptane Potassium permanganate (1% KMnO4) Aluminum chloride (anhydrous AlCl3) Chloroform (CHCl3) Ligroin Br2 in CCl4 (5%) Stopper pH paper Small test tubes and rack Graduated cylinder (10 ml) Evaporating dish DISCUSSION Organic chemistry is the study of compounds containing carbon (excluding CO2‚ CO‚ carbonates‚ elemental
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reactions of certain lipids called fats or oil. For this lab‚ students are testing the properties and reactions of lipids and soap will be prepared and its properties will be tested. To begin the experiment‚ place 5 mls of water‚ ethyl alcohol‚ chloroform‚ and toluene in to four clean test tubes and add 1 drops of cottonseed oil to each test tube. Shake it and record your observation. To do part B‚ in three test tube‚ place 5 mls of water and one drop of cottonseed oil. Then‚ add 3 mls of soap solution
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INTRODUCTION The ever increasing population in the world today has led to the mounting of sewage‚ refuse and industrial waste everywhere. This waste has no place where it could be discarded and now it has found its way into the water bodies polluting the water and thereby creating a threat to the marine flora and fauna. In the environment‚ organisms are usually exposed not just to a single pollutant but rather to a mixture of these chemicals. Mumbai is one of the busiest metropolitans in the country
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RANELLE JANINE L. ASI BIO 120 S-5L EXERCISE 9. Genomic DNA Isolation & Exercise 10. Polymerase Chain Reaction (PCR) Cell and molecular biology is a science based on the various systems of a cell resulting to its regulation‚ maintenance and function. Many of these systems involve genetic information hence the study of the DNA is an essential part of this field. To able to analyze DNA‚ it must first be isolated and purified from its natural environment filled with biological molecules and compounds
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http://www.ejchem.net ISSN: 0973-4945; CODEN ECJHAO E-Journal of Chemistry 2012‚ 9(2)‚ 980-987 Design‚ Synthesis and Docking Studies of a Novel Ciprofloxacin Analogue as an Antimicrobial AGENT S.JUBIE*‚ R. KALIRAJAN and PAVANKUMAR YADAV‚ Department of Pharmaceutical Chemistry J.S.S. College of Pharmacy‚ off campus - JSS University‚ Mysore jubiejawahar@gmail.com Received 31 July 2011; Accepted 4 October 2011 Abstract: The carboxylic acid group of ciprofloxacin was modified and amino mercapto triazole
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similar environments‚ the decomposition into carbon dioxide and water may occur. Other properties of Biopol include its insolubility in water‚ good oxygen permeability‚ ultra violet resistance but poor resistance to acid and bases‚ solubility in chloroform and other chlorinated hydrocarbons‚ biocompatibility (hence making it suitable for medical applications)‚ melting point of 175 °C and glass transition temperature of 15°C‚ sinks in water‚ and is non-toxic. There are many potential uses of PHA
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The Twin Experiments was conducted by Josef Mengele‚ during World War 2 in Auschwitz. Dr. Mengle was a medical researcher who was fascinated with twins in specific. From the three thousand children that would be pulled from the masses of people upon arriving only about 200 survived. Age didn’t matter‚ yet most were children‚ and if they were really young their mother would be allowed to stay with them. The twins recieved "special" treatmeant as they were allowed to keep their hair and clothes. A
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